Well, you said “I take 50 mg of Pregabalin twice a day”.
Due to the rupture of a SECOND disc, until 1 month ago I was taking 600 mg a day, with all the side effects that entails (one was high blood pressure, which sent me to the hospital).
So they switched to different doses of Buprenorphine, but the maximum didn’t work either. They tried Tramadol, but it gave me a severe anaphylactic reaction, so they went back to Pregabalin + antihypertensives. Always additional to physical therapy, etc.
Now I am on another “cocktail”.
And I always observe the same: the emotional suffering is worse than the physical pain.
You may still have a long and successful road ahead of you (as I understand, Richard had his spondylolisthesis of L5 at age 24, long before he was even enlightened).